Earthquake tremor activity increases in Yellowstone National Park
Hundreds of small earthquakes recorded since Sunday, Jan. 17
by Dawn Ballou, Pinedale Online!
January 19, 2010
The Casper Star-Tribune has an article about recent increased earthquake activity in Yellowstone National Park. The tremors began Sunday night and have continued into Tuesday. Most are under 2.5 in magnitude. The largest was magnitude 3.3, on Tuesday morning. According to the story, earthquake swarms such as this are a common event. Click here for the Casper Star-Tribune article: Earthquake swarm hits Yellowstone (January 18, 2010)
The U.S. Geological Survey (USGS) maintains a website showing a constantly updated list of all recent earthquakes with magnitude greater than 2.5 located by the USGS and contributing networks in the last week (168 hours).
Below are 2.5 magnitude or greater tremors for Yellowstone National Park recorded on the USGS earthquake website as of 9:00 AM Tuesday morning:
Tuesday, January 19, 2010: Yellowstone National Park, 2.6 magnitude, UTC time 13:26:53
Tuesday, January 19, 2010: Yellowstone National Park, 2.7 magnitude, UTC time 10:36:15
Tuesday, January 19, 2010: Yellowstone National Park, 2.5 magnitude, UTC time 09:39:52
Tuesday, January 19, 2010: Yellowstone National Park, 3.0 magnitude, UTC time 04:42:15
Tuesday, January 19, 2010: Yellowstone National Park, 3.3 magnitude, UTC time 03:39:40
Monday, January 18, 2010: Yellowstone National Park, 2.8 magnitude, UTC time 23:56:33
Monday, January 18, 2010: Yellowstone National Park, 2.9 magnitude, UTC time 19:38:43
Monday, January 18, 2010: Yellowstone National Park, 3.1 magnitude, UTC time 18:03:15
Monday, January 18, 2010: Yellowstone National Park, 2.5 magnitude, UTC time 16:00:15
Monday, January 18, 2010: Yellowstone National Park, 2.5 magnitude, UTC time 10:10:23
Monday, January 18, 2010: Yellowstone National Park, 2.5 magnitude, UTC time 02:44:16
Monday, January 18, 2010: Yellowstone National Park, 2.7 magnitude, UTC time 02:38:02
Monday, January 18, 2010: Yellowstone National Park, 2.6 magnitude, UTC time 01:04:25
Monday, January 18, 2010: Yellowstone National Park, 2.7 magnitude, UTC time 00:02:57
Sunday, January 17, 2010: Yellowstone National Park, 2.5 magnitude, UTC time 22:43:34
Sunday, January 17, 2010: Yellowstone National Park, 2.6 magnitude, UTC time 21:55:56
Sunday, January 17, 2010: Yellowstone National Park, 2.7 magnitude, UTC time 21:04:07
(Note: Coordinated Universal Time (UTC) is the international time standard. It is the current term for what was commonly referred to as Greenwich Meridian Time (GMT). Zero (0) hours UTC is midnight in Greenwich England, which lies on the zero longitudinal meridian. Universal time is based on a 24 hour clock, therefore, afternoon hours such as 4 pm UTC are expressed as 16:00 UTC (sixteen hours, zero minutes). Since a day is 24 hours long, the world may be split into 15 degree wide longitudinal bands (360 degrees/24 hours). Each band represents one hour. As an example, Huntsville Alabama is located at approximately 90 degrees west longitude, hence, local time lags UTC time by 6 hours (90/15, assuming Central Standard Time, 5 hours in Central Daylight Time). So, if the universal time is 14:30 UTC, United States Central Standard Time would be 8:30 am CST. Click here for more on time and time zones.)
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